Paul William Grigel

Sourcerock Group LLC (Sourcerock) is an independent, SEC-registered investment advisor and hedge fund manager headquartered in Denver, Colorado. The firm was founded by Christian Zann in 2020. Sourcerock provides discretionary investment management services to pooled investment vehicles organized as private investment funds, sub-advised private funds and other pooled investment vehicles and in the future may offer similar management services to institutional clients through separately managed accounts.

Founded in 2001, Macquarie Capital (USA), Inc. is a registered broker/dealer located in New York City. The firm is a subsidiary of Macquarie Bank Ltd. (ASX: MBL). They provide coverage of the following industries: resources, healthcare, security/defense, transportation, financial services, retail/consumer products, TMET (telecommunications, media, entertainment and technology), oil & gas, diversified manufacturing/distribution and infrastructure/utilities. Macquarie Capital (USA), Inc. is a member of FINRA.

Anschutz Investment Co (Anschutz Investment) is a private equity and venture capital firm subsidiary of The Anschutz Corp. founded in 1997. The firm is headquartered in Denver, Colorado.

Formerly known as Lincoln Capital Fixed Income Management Co. LLC, Lehman Brothers Asset Management LLC (LBAM) is a wholly owned subsidiary of Lehman Brothers Holdings, Inc. (NYSE:LEH)